标准测定

The Linpack benchmark is used to measure the supercomputer's real performance in practical use.

线形测试标准是用来测定超级计算机实际运用能力的衡量标准。

Under the optimum experimental conditions, copper, iron and zinc in traditional Chinese medicines such as radix angelicae sinensis, flos sophorae, herba taxilli, folium apocyni veneti and radix scutellarae were determined. The recoveries are between 90% and 110%, the relative standard deviation is less than 5%, and the experimental results are satisfactory. This method is rapid and reliable.

在选定的实验条件下，利用标准加入法分析测定了中药当归、槐花、桑寄生、罗布麻叶和黄芩等中药中的铜、铁和锌的含量，回收率为90%~110%，方法的相对标准偏差小于5%。

It is shown that the detection limit and linear range for benzidine are 14.4 and 30 - 400 ng/mL, respectively under the optimum experimental conditions.

在最佳实验条件下，方法的线性范围为30～400ng／mL，检出限为14.4ng／mL，对11份浓度为80ng／mL，300ng／mL的联苯胺标准溶液进行平行测定，相对标准偏差分别为2.1％和1.2％。

Three methods and 3 calculating formula were used to choose for concrete operation according to the idea at urine iodine assayed with cerous sulfate reducing reaction by which WHO and ICCIDD draw up the preventive and curative criteria of iodine deficiency.

本文根据&WHO与ICCIDD制定的碘缺乏病防治标准与方法&中硫酸铈还原反应测定尿碘的意图，采用3种方法和3种计算公式对具体操作进行选择，并对原标准对照计算法的不合理以及计算误差对评价尿碘水平的效能进行了探讨。结果表明：（1）方法Ⅰ存在仪器误差，准确度不佳。方法Ⅱ线性关系和准确度较理想，但操作不便计算麻烦。方法Ⅲ线性关系和准确度与方法Ⅱ无差异，操作和计算简便、节约试剂。

Based on pre-experiment foundation of the earlier period, 60 male patients among 45-65 year old were chosed as the clinical case according to the PADAM diagnosis standard, and were divided into 3 groups according to the block stochastic principle, the observation group (acupuncture combined with BUSEHN capsule), group 1, group 2 (takes orally BUSEHN capsule group), each group had 20 cases, and each group of patients was measured by the method of radio-immunity for the serum level of testosterone, luteinizing hormoha, follicle-stimulating hormone before and after the treatment. By the contrast of the grade of PADAM symptom among three groups before and after treatment ,we can reveal the whole funcamental characteristic of acupuncture combined with herb ,and discuss a new way to enhance the curative effect of acupuncture ,and summarize the endocrinous adjustment of acupuncture for the PADAM's patients and the orchidic improvement by the treatment of acupuncture.

在前期预实验的基础上，选择符合诊断标准的PADAM诊断标准的45-65岁男性患者临床病例60例，按照区组随机原则分为3组，观察组、对照组1、对照组2，每组各20例，采用放射免疫法分别测定各组患者治疗前后血清中血清睾酮、黄体生成素、卵泡刺激素的血清浓度的水平；通过三组及三组间治疗前后PADAM症状评分指数的对比研究，揭示针药结合的整体调节作用特色，探讨提高针灸疗效的新途径；总结出针刺对中老年雄激素缺乏综合征患者的内分泌的调节及针刺对睾丸的改善程度，探讨针药结合治疗本病的机制及针灸增效剂的应用前景，为今后进一步研究打下坚实基础。

In this method, titration with standard solution of perchloric acid in glacial acetic acid was used.

建立了在非水条件下快速测定食品中糖精钠的方法，以冰乙酸为溶剂，用高氯酸的冰乙酸标准溶液滴定，经过反复试验，相对标准误差0.92%~2.93%，加标回收率97.13%~100.3%，结果表明；该法定量分析准确，精确度高，可靠性和重现性好。

Based on the shortcomings of the COD determination method revised in National Standard, some improvement measures of the standard method, including improvement of slaking phrases, research of substitution catalysts and elimination of chlorine ion disturbance, are compared and discussed. Afterwards, some common substitution COD determination methods, such as correlation coefficient analysis method, electrochemistry analysis method, spectrophotometric analysis method and flow inject analysis method, are introduced.

在论述了国标中COD标准方法不足之处的基础上，本文就标准方法的众多改进措施分类进行了比较与探讨，包括消解方法的改进、替代催化剂的研究以及氯离子干扰的消除，然后介绍了相关系数法、电化学法、分光光度法和流动注射法等COD测定替代技术。

The proposed method has been applied to the direct determination of zirconium in terephthalic acid .

方法用于对苯二甲酸样品中锆的测定，结果与4，5-二溴苯基荧光酮法一致，相对标准偏差为1.6%~2.5%，标准加入回收率为

Experimental results showed that by using 5%NH4H2PO4 as the matrix modifier and used graphite tube,setting the charring te...

使用标准物质(茶叶GBW 10016)对该方法进行了检验，结果表明铅的测定值在标准样品的保证值范围内。

In addition, the constant-volume combustion heat of MPC was determined as -25432.72 J·g~(-1) by a oxygen bomb calorimeter at 298.15 K, and its standard molar combustion enthalpy and standard molar enthalpy of formation were calculated as -3868.92 kJ·mol~(-1) and -422.33 kJ·mol~(-1), respectively.

同时本文测定了MPC的恒容燃烧热为-25432.72 J·g~(-1)，并计算出MPC的标准摩尔燃烧焓为-3868.92 kJ·mol~(-1)及标准摩尔生成焓为-422.33 kJ·mol~(-1)。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。